6468. The teacher felt that the student lacked discrimination in the study of his data.

✅ The correct answer is option D.
Imagination : the faculty or action of forming new ideas, or images or concepts of external objects not present to the senses.

Taste : the sensation of flavour perceived in the mouth and throat on contact with a substance.

Objectivity : the quality of being objective.

Discernment : the ability to judge well.

Discrimination : the ability to judge what is of high quality; good judgement or taste.

Synonym of Discrimination is Discernment